refactor: Add a `bin_unpack_bin_max` for max-length arrays. #3712

Job	Run time
docker-bootstrap-node	22s
docker-esp32	42s
docker-fuzzer	12s
docker-toxcore-js	1m 46s
docker-win32	15s
docker-win64	8s
docker-clusterfuzz	1m 26s
docker-bootstrap-node-websocket	0s
	4m 51s

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